QUrlOperator在qtopia中使用错误 [复制链接]

QNetWork: qInitNetworkProtocols ()  ;
QString fn="file:/root/try";
    QString home="/home/";

QUrlOperator *op = new QUrlOperator(); 
op.copy( QString(fn),  home,false);
   

错误如下:
/opt/FriendlyARM/SBC2410/x86-qtopia/qt/include/qurlinfo.h:46: forward declaration of `class QUrlOperator'

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